<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <a-space size="small">
        <a-button type="primary" @click="handleQuery()()" size="large">
          刷新
        </a-button>
        <a-button type="primary" @click="add()" size="large">
          新增
        </a-button>
      </a-space>
      <a-table :columns="columns"
               :row-key="record => record.id"
               :data-source="level1"
               :loading="modalLoading"
               :pagination="false"
      >
        <template #cover="{ text: cover }">
          <img v-if="cover"
               :src="cover"
               alt="avatar"
               :width="100"
               :height="100"/>
        </template>
        <template v-slot:action="{ text, record }">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)">
              编辑
            </a-button>
            <a-popconfirm
                title="删除后不可恢复，确认删除?"
                ok-text="是"
                cancel-text="否"
                @confirm="handleDelete(record.id)"
            >
              <a-button type="primary" danger>
                删除
              </a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </a-table>
    </a-layout-content>
  </a-layout>

  <a-modal title="分类表单"
           v-model:visible="modalVisible"
           @ok="handleModalOk"
           :confirm-loading="modalLoading">
    <a-form :model="category" :label-col="{ span: 6}">
      <a-form-item label="名称">
        <a-input v-model:value="category.name"/>
      </a-form-item>
      <a-form-item label="父分类">
        <a-select
            ref="select"
            v-model:value="category.parent"
        >
          <a-select-option value="0">无</a-select-option>
          <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :disabled="category.id === c.id">
            {{ c.name }}
          </a-select-option>
        </a-select>
      </a-form-item>
      <a-form-item label="顺序">
        <a-input v-model:value="category.sort"/>
      </a-form-item>
    </a-form>
  </a-modal>

</template>

<script lang="ts">
import {defineComponent, onMounted, ref, reactive} from 'vue';
import axios from 'axios'
import {message} from "ant-design-vue";
import {Tool} from "@/util/tool";

export default defineComponent({
  name: 'AdminCategory',
  setup() {
    console.log("setup");
    const categorys = ref();

    const loading = ref(false);
    const KeyValue = ref<string>('');
    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
      },
      {
        title: '父分类',
        key: 'parent',
        dataIndex: 'parent'
      },
      {
        title: '顺序',
        dataIndex: 'sort',
      },
      {
        title: 'action',
        key: 'action',
        slots: {customRender: 'action'}
      }
    ];

    /**
     * 一级分类树，children属性就是二级分类
     * [{
     *   id: "",
     *   name: "",
     *   children:[{
     *     id: "",
     *     name: "",
     *   }]
     * }]
     */
     const level1 = ref();  //一级分类树，children属性就是二级分类

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value = true;
      axios.get("/category/all").then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          categorys.value = data.content;
          console.log("原始数组：", categorys.value);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys.value, 0);
          console.log("树形结构：", level1);

        } else {
          message.error(data.message);
        }
      })
    };


    //---------------表单-----------------
    const category = ref();
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const handleModalOk = () => {
      modalLoading.value = true;

      axios.post("/category/save", category.value).then((response) => {
        modalLoading.value = false;
        const data = response.data; // data == commonResp
        if (data.success) {
          modalVisible.value = false;
          modalLoading.value = false;

          //重新加载列表
          handleQuery();
        } else {
          message.error(data.message);
        }
      });
    };


    /**
     *编辑
     **/
    const edit = (record: any) => {
      modalVisible.value = true;
      category.value = Tool.copy(record); //不复制会指向同一内存地址,导致数值绑死
    };
    /**
     *新增
     **/
    const add = () => {
      modalVisible.value = true;
      category.value = {};
    };
    /**
     *删除
     **/
    const handleDelete = (id: number) => {
      axios.delete("/category/delete/" + id).then((response) => {

        const data = response.data; // data == commonResp
        if (data.success) {
          //重新加载列表
          handleQuery();
        }
      });
    };

    onMounted(() => {
      handleQuery();
    });

    return {
      columns,
      // categorys,
      loading,
      level1,

      modalVisible,
      modalLoading,
      handleModalOk,
      handleQuery,
      category,
      KeyValue,

      add,
      edit,
      handleDelete,
    }
  }
});
</script>